– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 10 am Wed 20 May Local TimeUpdates in: hr min sUpdate imminent
Issued: 10 am Wed 20 May Local Time
Updates in:
Update imminent hr min s
Issued: 10 am Wed 20 May Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–3 Weather SummaryMostly dry. Very mild (max 19°C on Thu afternoon, min 10°C on Wed morning). Wind will be generally light. | Days 4–6 Weather SummaryHeavy rain (total 33mm), heaviest during Sun night. Very mild (max 18°C on Sat afternoon, min 6°C on Sun night). Wind will be generally light. | |||||||||||||||||
Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | Sunday 24 | Monday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | | |  |  | | | | |  |  |  | |  | |
some clouds | some clouds | clear | clear | some clouds | clear | clear | rain shwrs | some clouds | some clouds | clear | some clouds | some clouds | light rain | heavy rain | mod. rain | light rain | rain shwrs | |
km/h | ||||||||||||||||||
 |  |  |  |  |  | |||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | 0.1 | — | — | — | — | — | 1.1 | 22 | 7 | 2 | 1 | |
max °C | 13 | 16 | 13 | 18 | 19 | 16 | 17 | 19 | 16 | 16 | 18 | 14 | 12 | 12 | 8 | 7 | 9 | 8 |
min °C | 10 | 15 | 11 | 15 | 19 | 12 | 14 | 18 | 11 | 13 | 18 | 8 | 10 | 10 | 6 | 7 | 8 | 6 |
10 | 15 | 11 | 15 | 19 | 12 | 14 | 18 | 11 | 13 | 18 | 7 | 10 | 10 | 4 | 6 | 8 | 6 | |
2600 | 2900 | 2950 | 2850 | 2950 | 2850 | 2900 | 3050 | 3200 | 3100 | 2950 | 2600 | 2200 | 2050 | 1600 | 1550 | 1800 | 1950 | |
Cloud base (m) | 900 | 1700 | 6100 | 5000 | 2650 | 8650 | 2250 | 6800 | 1950 | 1850 | 550 | 550 | 650 | 1750 | ||||
 | 5:20 | — | — | 5:18 | — | — | 5:18 | — | — | 5:16 | — | — | 5:16 | — | — | 5:15 | — | — |
 | — | — | 8:47 | — | — | 8:50 | — | — | 8:51 | — | — | 8:52 | — | — | 8:52 | — | — | 8:53 |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Mostly dry. Very mild (max 19°C on Thu afternoon, min 10°C on Wed morning). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 33mm), heaviest during Sun night. Very mild (max 18°C on Sat afternoon, min 6°C on Sun night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.